The Mole - Solon City Schools
... It is the simplest ratio possible. Ex – P4O6 C6H9 CH2OHCH2OH BrCl2 ...
... It is the simplest ratio possible. Ex – P4O6 C6H9 CH2OHCH2OH BrCl2 ...
Practice Exam 2 - Department of Chemistry and Biochemistry
... When 16 g of methane is burned according to the equation CH4 + 2O2 CO2 + 2H2O , you experimentally measure you have produced 32 g of water. What is the percent yield for this reaction? A. 79% B. 85% C. 95% D. 62% E. 89% ...
... When 16 g of methane is burned according to the equation CH4 + 2O2 CO2 + 2H2O , you experimentally measure you have produced 32 g of water. What is the percent yield for this reaction? A. 79% B. 85% C. 95% D. 62% E. 89% ...
1 Unit 4 – Conservation of Mass and Stoichiometry
... 150 lbs. of brown sugar, ten lbs. of baking soda and TWO eggs. It should be clear that it is the number of eggs that will determine the number of cookies that I can make." B. Excess Reactant 1. The substance that is not used up completely in a reaction C. Identifying the Limiting Reactant 1. Convert ...
... 150 lbs. of brown sugar, ten lbs. of baking soda and TWO eggs. It should be clear that it is the number of eggs that will determine the number of cookies that I can make." B. Excess Reactant 1. The substance that is not used up completely in a reaction C. Identifying the Limiting Reactant 1. Convert ...
Compound Name
... 1) A student placed a piece of zinc metal in a solution of hydrochloric acid. The chemical equation for the reaction that occurred is: Zn(s) + 2HCl(aq) →H2(g) + ZnCl2 (aq) The following data were collected; Initial mass of zinc: 2.5 g Initial mass of HCl: 52.6 g Final mass of solution: 54.8 g a) Do ...
... 1) A student placed a piece of zinc metal in a solution of hydrochloric acid. The chemical equation for the reaction that occurred is: Zn(s) + 2HCl(aq) →H2(g) + ZnCl2 (aq) The following data were collected; Initial mass of zinc: 2.5 g Initial mass of HCl: 52.6 g Final mass of solution: 54.8 g a) Do ...
ic199p5a
... between NaF2 and NaF would correspond to a negative Hreaction for the conversion to NaF + F2). 3. (a) Write out the reactions that correspond to (i) the heat of formation, and (ii) the lattice enthalpy, for cesium superoxide, CsO2(s) (a cesium salt of the [O2]- ion). Be sure to balance the equatio ...
... between NaF2 and NaF would correspond to a negative Hreaction for the conversion to NaF + F2). 3. (a) Write out the reactions that correspond to (i) the heat of formation, and (ii) the lattice enthalpy, for cesium superoxide, CsO2(s) (a cesium salt of the [O2]- ion). Be sure to balance the equatio ...
X CHEMISTRY-1-2006 TIME-1½ MARKS 80 SECTION
... Al3+(aq), Fe2+(aq) Fe3+(aq), Pb2+(aq), Zn2+(aq) When treated with an moni 4m hydroxide gives praceci pitate? Write The equation of reaction. D. Aluminum carbide seats with water according to the following equation : AluC3+12H2O ------- 3CH4+4 Al (OH)3) ...
... Al3+(aq), Fe2+(aq) Fe3+(aq), Pb2+(aq), Zn2+(aq) When treated with an moni 4m hydroxide gives praceci pitate? Write The equation of reaction. D. Aluminum carbide seats with water according to the following equation : AluC3+12H2O ------- 3CH4+4 Al (OH)3) ...
CHEMISTRY 1 FINAL EXAM REVIEW
... 2.) Write the formulas and charges for the following ions: Phosphate, nitrite, nitrate, hydroxide, carbonate, ammonium. 3.) What is the total number of atoms in one molecule of C6Hl2O6? 4.) What types of elements when combined would be most likely to form an ionic compound? 5.) What is the ionic cha ...
... 2.) Write the formulas and charges for the following ions: Phosphate, nitrite, nitrate, hydroxide, carbonate, ammonium. 3.) What is the total number of atoms in one molecule of C6Hl2O6? 4.) What types of elements when combined would be most likely to form an ionic compound? 5.) What is the ionic cha ...
File
... (a) solution 1, Pb(NO3)2. This compound will dissociate into three ions with the highest total particle molality. The greater the molality, the higher the boiling point. Solutions 2, 3, and 5 will produce two ions while solution 4 is molecular. (b) solution 5, KC2H3O2. The salt of a weak acid (in th ...
... (a) solution 1, Pb(NO3)2. This compound will dissociate into three ions with the highest total particle molality. The greater the molality, the higher the boiling point. Solutions 2, 3, and 5 will produce two ions while solution 4 is molecular. (b) solution 5, KC2H3O2. The salt of a weak acid (in th ...
Spring 2009 Final Exam Review – Part 2
... o 11.21g H 1 mol H = 11.09900mol H 1.01g H o 88.79g O 1 mol O = 5.549 mol O 16.00g O o 11.09900mol H/ 5.549 mol = 2 o 5.549mol O/5.549 mol = 1 o H2O Molecular Formula: Is the true chemical formula for a substance. Ex. C6H12O6 , H2O2, NaNO3 Calculating an empirical formula from % composition and ...
... o 11.21g H 1 mol H = 11.09900mol H 1.01g H o 88.79g O 1 mol O = 5.549 mol O 16.00g O o 11.09900mol H/ 5.549 mol = 2 o 5.549mol O/5.549 mol = 1 o H2O Molecular Formula: Is the true chemical formula for a substance. Ex. C6H12O6 , H2O2, NaNO3 Calculating an empirical formula from % composition and ...
Chapter 11
... with a single reactant. Most require energy. ► These are the opposite of combination ...
... with a single reactant. Most require energy. ► These are the opposite of combination ...
Unit 5 and 6 revsion - Deans Community High School
... (b) Name the acidic gas formed when coal with a high sulphur content is burned. (c) Name the toxic gas formed when methane is burned in a limited supply of air. (d) A catalytic converter fitted to a car exhaust reduces the amount of dangerous gases emitted into the atmosphere. Name the catalyst used ...
... (b) Name the acidic gas formed when coal with a high sulphur content is burned. (c) Name the toxic gas formed when methane is burned in a limited supply of air. (d) A catalytic converter fitted to a car exhaust reduces the amount of dangerous gases emitted into the atmosphere. Name the catalyst used ...
Chapter One
... a C-H combustion train to produce 0.3509 g of CO2 and 0.1915 g of H2O. Determine the masses of C and H in the sample, the percentage of these elements in this hydrocarbon, and the empirical formula of the compound. ...
... a C-H combustion train to produce 0.3509 g of CO2 and 0.1915 g of H2O. Determine the masses of C and H in the sample, the percentage of these elements in this hydrocarbon, and the empirical formula of the compound. ...
Review Station Ideas
... 3 Stoichiometry Station 10 – HYDRATES A student is assigned the task of determining the number of moles of water in one mole of MgCl2 · n H2O. The student collects the data shown in the following table. Mass of empty container Initial mass of sample and container Mass of sample and container after ...
... 3 Stoichiometry Station 10 – HYDRATES A student is assigned the task of determining the number of moles of water in one mole of MgCl2 · n H2O. The student collects the data shown in the following table. Mass of empty container Initial mass of sample and container Mass of sample and container after ...
Chapter 3. Stoichiometry: Calculations with Chemical Formulas and
... • Often, one or more reactants is present in excess • At the end of reaction those reactants present in excess will still be in the reaction mixture • The one or more reactants completely consumed are called the limiting reactants or limiting reagents •Reactants present in excess are called excess r ...
... • Often, one or more reactants is present in excess • At the end of reaction those reactants present in excess will still be in the reaction mixture • The one or more reactants completely consumed are called the limiting reactants or limiting reagents •Reactants present in excess are called excess r ...